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Using braces with dynamic variable names in PHP
I'm trying to use dynamic variable names (I'm not sure what they're actually called) But pretty much like this:
8 Answers
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How to get all subsets of a set? (powerset)
...owerset([4, 5, 6])))
Using yield means that you do not need to calculate all results in a single piece of memory. Precalculating the masks outside the main loop is assumed to be a worthwhile optimization.
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Refresh a page using JavaScript or HTML [duplicate]
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no, i did not test them all
– epoch
Jan 10 '14 at 8:06
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How to run Unix shell script from Java code?
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You should really look at Process Builder. It is really built for this kind of thing.
ProcessBuilder pb = new ProcessBuilder("myshellScript.sh", "myArg1", "myArg2");
Map<String, String> env = pb.environment();
env.put("VAR1", "m...
How to export all collections in MongoDB?
I want to export all collections in MongoDB by the command:
26 Answers
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What is the difference between typeof and instanceof and when should one be used vs. the other?
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@Luke generally a bad idea to use "new String" like this. that creates a "string object" rather than a string primitive. see section here developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Colin D
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Invert “if” statement to reduce nesting
...cked this code from the refactoring catalog. This specific refactoring is called: Replace Nested Conditional with Guard Clauses.
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Jackson with JSON: Unrecognized field, not marked as ignorable
...eserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
It will ignore all the properties that are not declared.
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How to paginate with Mongoose in Node.js?
...de.js and mongoose. How can I paginate the results I get from a .find() call? I would like a functionality comparable to "LIMIT 50,100" in SQL.
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How to find memory leak in a C++ code/project?
...e software tools
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Understand the operator basics. The C++ operator new allocates heap memory. The delete operator frees heap memory. For every new, you should use a delete so that you free the same memory you allocated:
char* str = new char [30]; // Allocate 30 bytes to house a string.
delete ...